/*
  KeePass Password Safe - The Open-Source Password Manager
  Copyright (C) 2003-2017 Dominik Reichl <dominik.reichl@t-online.de>

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text;

using KeePassLib.Cryptography;
using KeePassLib.Security;

namespace KeePassLib.Keys
{
  public sealed class KcpCustomKey : IUserKey
  {
    private readonly string m_strName;
    private ProtectedBinary m_pbKey;

    /// <summary>
    /// Name of the provider that generated the custom key.
    /// </summary>
    public string Name
    {
      get { return m_strName; }
    }

    public ProtectedBinary KeyData
    {
      get { return m_pbKey; }
    }

    public uint GetMinKdbxVersion()
    {
      return 0;
    }

    public KcpCustomKey(string strName, byte[] pbKeyData, bool bPerformHash)
    {
      Debug.Assert(strName != null); if (strName == null) throw new ArgumentNullException("strName");
      Debug.Assert(pbKeyData != null); if (pbKeyData == null) throw new ArgumentNullException("pbKeyData");

      m_strName = strName;

      if (bPerformHash)
      {
        byte[] pbRaw = CryptoUtil.HashSha256(pbKeyData);
        m_pbKey = new ProtectedBinary(true, pbRaw);
      }
      else m_pbKey = new ProtectedBinary(true, pbKeyData);
    }

    // public void Clear()
    // {
    //	m_pbKey = null;
    // }
  }
}
